2 * cx18 ADEC firmware functions
4 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
5 * Copyright (C) 2008 Andy Walls <awalls@radix.net>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 #include "cx18-driver.h"
25 #include <linux/firmware.h>
27 #define CX18_AUDIO_ENABLE 0xc72014
28 #define FWFILE "v4l-cx23418-dig.fw"
30 int cx18_av_loadfw(struct cx18
*cx
)
32 struct v4l2_subdev
*sd
= &cx
->av_state
.sd
;
33 const struct firmware
*fw
= NULL
;
40 if (request_firmware(&fw
, FWFILE
, &cx
->pci_dev
->dev
) != 0) {
41 CX18_ERR_DEV(sd
, "unable to open firmware %s\n", FWFILE
);
45 /* The firmware load often has byte errors, so allow for several
46 retries, both at byte level and at the firmware load level. */
47 while (retries1
< 5) {
48 cx18_av_write4_expect(cx
, CXADEC_CHIP_CTRL
, 0x00010000,
49 0x00008430, 0xffffffff); /* cx25843 */
50 cx18_av_write_expect(cx
, CXADEC_STD_DET_CTL
, 0xf6, 0xf6, 0xff);
52 /* Reset the Mako core, Register is alias of CXADEC_CHIP_CTRL */
53 cx18_av_write4_expect(cx
, 0x8100, 0x00010000,
54 0x00008430, 0xffffffff); /* cx25843 */
56 /* Put the 8051 in reset and enable firmware upload */
57 cx18_av_write4_noretry(cx
, CXADEC_DL_CTL
, 0x0F000000);
62 for (i
= 0; i
< size
; i
++) {
63 u32 dl_control
= 0x0F000000 | i
| ((u32
)ptr
[i
] << 16);
68 for (retries2
= 0; retries2
< CX18_MAX_MMIO_WR_RETRIES
;
70 cx18_av_write4_noretry(cx
, CXADEC_DL_CTL
,
73 value
= cx18_av_read4(cx
, CXADEC_DL_CTL
);
74 if (value
== dl_control
)
76 /* Check if we can correct the byte by changing
77 the address. We can only write the lower
78 address byte of the address. */
79 if ((value
& 0x3F00) != (dl_control
& 0x3F00)) {
84 if (unrec_err
|| retries2
>= CX18_MAX_MMIO_WR_RETRIES
)
92 CX18_ERR_DEV(sd
, "unable to load firmware %s\n", FWFILE
);
97 cx18_av_write4_expect(cx
, CXADEC_DL_CTL
,
98 0x13000000 | fw
->size
, 0x13000000, 0x13000000);
100 /* Output to the 416 */
101 cx18_av_and_or4(cx
, CXADEC_PIN_CTRL1
, ~0, 0x78000);
103 /* Audio input control 1 set to Sony mode */
104 /* Audio output input 2 is 0 for slave operation input */
105 /* 0xC4000914[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
106 /* 0xC4000914[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
107 after WS transition for first bit of audio word. */
108 cx18_av_write4(cx
, CXADEC_I2S_IN_CTL
, 0x000000A0);
110 /* Audio output control 1 is set to Sony mode */
111 /* Audio output control 2 is set to 1 for master mode */
112 /* 0xC4000918[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
113 /* 0xC4000918[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
114 after WS transition for first bit of audio word. */
115 /* 0xC4000918[8]: 0 = slave operation, 1 = master (SCK_OUT and WS_OUT
117 cx18_av_write4(cx
, CXADEC_I2S_OUT_CTL
, 0x000001A0);
119 /* set alt I2s master clock to /0x16 and enable alt divider i2s
121 cx18_av_write4(cx
, CXADEC_PIN_CFG3
, 0x5600B687);
123 cx18_av_write4_expect(cx
, CXADEC_STD_DET_CTL
, 0x000000F6, 0x000000F6,
125 /* CxDevWrReg(CXADEC_STD_DET_CTL, 0x000000FF); */
127 /* Set bit 0 in register 0x9CC to signify that this is MiniMe. */
128 /* Register 0x09CC is defined by the Merlin firmware, and doesn't
129 have a name in the spec. */
130 cx18_av_write4(cx
, 0x09CC, 1);
132 v
= cx18_read_reg(cx
, CX18_AUDIO_ENABLE
);
133 /* If bit 11 is 1, clear bit 10 */
135 cx18_write_reg_expect(cx
, v
& 0xFFFFFBFF, CX18_AUDIO_ENABLE
,
138 /* Enable WW auto audio standard detection */
139 v
= cx18_av_read4(cx
, CXADEC_STD_DET_CTL
);
140 v
|= 0xFF; /* Auto by default */
141 v
|= 0x400; /* Stereo by default */
143 cx18_av_write4_expect(cx
, CXADEC_STD_DET_CTL
, v
, v
, 0x3F00FFFF);
145 release_firmware(fw
);
147 CX18_INFO_DEV(sd
, "loaded %s firmware (%d bytes)\n", FWFILE
, size
);